The number of hospital admissions across the UK for teenagers with eating disorders has nearly doubled in the last three years, according to the NHS.
They increased from 959 13 to 19-year-olds in 2010/11 to 1,815 in 2013/14.
Although the numbers are relatively small, experts say the rate of increase (89%) is mirrored by a larger number of cases that don’t go to hospital.
The Royal College of Psychiatrists said much of the increase is down to social pressure made worse by online images.
It is easy to find tens of millions of pictures of people with “perfect-looking” bodies if you search online using certain hashtags.
These images are putting vulnerable teenagers under pressure about their own body image, according to the Royal College.
Read more at the BBC Newsbeat website.